[Bug 63221] [865G] GPU hung - stale data/cacheline in batch
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Jul 2 00:56:29 PDT 2013
https://bugs.freedesktop.org/show_bug.cgi?id=63221
Chris Wilson <chris at chris-wilson.co.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |FIXED
--- Comment #14 from Chris Wilson <chris at chris-wilson.co.uk> ---
I know now what caused this regression for you, the fix is:
commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
In the introduction of the non-blocking wait, I cut'n'pasted the wait
completion code from normal locked path. Unfortunately, this neglected
that the normal path returned early if the wait returned early. The
result is that read-only waits may return whilst the GPU is still
writing to the bo.
Fixes regression from
commit 3236f57a0162391f84b93f39fc1882c49a8998c7 [v3.7]
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Fri Aug 24 09:35:09 2012 +0100
drm/i915: Use a non-blocking wait for set-to-domain ioctl
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